Wyniki wyszukiwania - BazTech

1

Nonparametric statistical analysis for multiple comparison of machine learning regression algorithms

Trawiński B., Smętek M., Telec Z., Lasota T.

International Journal of Applied Mathematics and Computer Science

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2012

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Vol. 22, no. 4

867-881

EN

In the paper we present some guidelines for the application of nonparametric statistical tests and post-hoc procedures devised to perform multiple comparisons of machine learning algorithms. We emphasize that it is necessary to distinguish between pairwise and multiple comparison tests. We show that the pairwise Wilcoxon test, when employed to multiple comparisons, will lead to overoptimistic conclusions. We carry out intensive normality examination employing ten different tests showing that the output of machine learning algorithms for regression problems does not satisfy normality requirements. We conduct experiments on nonparametric statistical tests and post-hoc procedures designed for multiple 1 x N and N x N comparisons with six different neural regression algorithms over 29 benchmark regression data sets. Our investigation proves the usefulness and strength of multiple comparison statistical procedures to analyse and select machine learning algorithms.

2

A Monitoring platform for distributed Java applications

Funka W., Bubak M., Smętek M., Wismuller R.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

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2004

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Vol. 8, No 4

525-536

EN

This paper presents a new Java oriented monitoring infrastructure that enables tools to observe, analyze and manipulate the execution of distributed Java applications independent of implementation details like instrumentation of monitored entities, hardware platform and application libraries. Tools can access the monitored application via a standardized interface defined by an On-Line Monitoring Interface Specification (OMIS) and extended by a set of new Java-specific services relating to garbage collection, class loading, remote method invocation, etc. The new monitoring functionality can be applied for building various kinds of tools and for adapting the already existing ones, such as performance analyzers, debuggers, etc., working in the on-line mode.

3

Ocena efektów przebudowy cementowni metody mokrej na metodę suchą

Rybarczyk A., Smętek M., Zakrzewska M.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

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2000

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z. 65

67-74

PL

Celem prezentowanego artykułu jest porównanie emisji zanieczyszczeń z cementowni w aspekcie mokrej i suchej metody produkcji cementu. W pracy przedstawiono krótką charakterystykę produkcji cementu, a także towarzyszące jej emisje zanieczyszczeń. Szczególną uwagę poświęcono planom przyszłościowym cementowni.

EN

The objective of the presented article is to compare the pollution emission in the cement mill with regard to the wet and dry method. This work presents the short characteristic of the cement manufacturing along with the accompanying pollution emision. The special attention has been drawn to the future plans of the cement mill.